JPS5321112Y2 - - Google Patents
Info
- Publication number
- JPS5321112Y2 JPS5321112Y2 JP1971081201U JP8120171U JPS5321112Y2 JP S5321112 Y2 JPS5321112 Y2 JP S5321112Y2 JP 1971081201 U JP1971081201 U JP 1971081201U JP 8120171 U JP8120171 U JP 8120171U JP S5321112 Y2 JPS5321112 Y2 JP S5321112Y2
- Authority
- JP
- Japan
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B7/00—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
- G03B7/08—Control effected solely on the basis of the response, to the intensity of the light received by the camera, of a built-in light-sensitive device
- G03B7/081—Analogue circuits
- G03B7/083—Analogue circuits for control of exposure time
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B7/00—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
- G03B7/08—Control effected solely on the basis of the response, to the intensity of the light received by the camera, of a built-in light-sensitive device
- G03B7/091—Digital circuits
- G03B7/093—Digital circuits for control of exposure time
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Exposure Control For Cameras (AREA)
- Shutter-Related Mechanisms (AREA)
- Shutters For Cameras (AREA)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1971081201U JPS5321112Y2 (ja) | 1971-09-07 | 1971-09-07 | |
| US00284351A US3798662A (en) | 1971-09-07 | 1972-08-28 | Digital exposure time determining system for cameras |
| DE2243391A DE2243391C3 (de) | 1971-09-07 | 1972-09-04 | Anordnung zur quantisierten Anzeige und/oder Auswertung einer Eingangsinformation, insbesondere einer die Objekthelligkeit oder die Belichtungszeit für photographische Aufnahmen kennzeichnenden Eingangsinformation |
| GB4163272A GB1389883A (en) | 1971-09-07 | 1972-09-07 | Eyposure time control circuit for a camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1971081201U JPS5321112Y2 (ja) | 1971-09-07 | 1971-09-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4837644U JPS4837644U (ja) | 1973-05-08 |
| JPS5321112Y2 true JPS5321112Y2 (ja) | 1978-06-02 |
Family
ID=27987615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1971081201U Expired JPS5321112Y2 (ja) | 1971-09-07 | 1971-09-07 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3798662A (ja) |
| JP (1) | JPS5321112Y2 (ja) |
| DE (1) | DE2243391C3 (ja) |
| GB (1) | GB1389883A (ja) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5833537B2 (ja) * | 1973-01-29 | 1983-07-20 | 株式会社リコー | 一眼レフレツクスカメラの測光情報表示装置 |
| US4074292A (en) * | 1973-02-06 | 1978-02-14 | Canon Kabushiki Kaisha | System for indicating photographic information |
| US4054887A (en) * | 1973-04-16 | 1977-10-18 | Ernest Leitz Gmbh | Exposure control device for photographic cameras |
| JPS5539372Y2 (ja) * | 1973-07-27 | 1980-09-13 | ||
| JPS5067650A (ja) * | 1973-10-17 | 1975-06-06 | ||
| US4072962A (en) * | 1975-07-03 | 1978-02-07 | Nippon Kogaku K.K. | Metering device |
| JPS5421329A (en) * | 1977-07-18 | 1979-02-17 | Hitachi Ltd | Control system for cameras |
| ITUD20050119A1 (it) * | 2005-07-18 | 2007-01-19 | Neuricam Spa | Elemento fotosensibile per sensori elettro-ottici |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS519530A (ja) * | 1974-07-15 | 1976-01-26 | Hitachi Ltd |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2870406A (en) * | 1957-06-03 | 1959-01-20 | Caldwell P Smith | Device for voltage measurement |
| JPS5211223B1 (ja) * | 1970-04-06 | 1977-03-29 |
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1971
- 1971-09-07 JP JP1971081201U patent/JPS5321112Y2/ja not_active Expired
-
1972
- 1972-08-28 US US00284351A patent/US3798662A/en not_active Expired - Lifetime
- 1972-09-04 DE DE2243391A patent/DE2243391C3/de not_active Expired
- 1972-09-07 GB GB4163272A patent/GB1389883A/en not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS519530A (ja) * | 1974-07-15 | 1976-01-26 | Hitachi Ltd |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2243391B2 (de) | 1980-11-06 |
| US3798662A (en) | 1974-03-19 |
| DE2243391C3 (de) | 1981-07-02 |
| GB1389883A (en) | 1975-04-09 |
| DE2243391A1 (de) | 1973-03-15 |
| JPS4837644U (ja) | 1973-05-08 |